Boiler-flue fastening.



No. 808,027. PATENTBDDEC. 19, 1905.

l L. EAGBR.

BOILBR FLUE FASTENING.

APPLIOATION FILED AUG. 26. 1904.

WL'UUSSSGS: Mentor.'

UNITED STATES PATENT OFFICE.

LEE EAGER, OF ARAPAHO, OKLAHOMA TERRITORY, ASSIGNOR TO JOHN LAMOND, OFARAPAHO, OKLAHOMA TERRITORY.

BOlLER-FLUE FASTENING- Specification of Letters Patent.

Patented Dec. 19, 1905.

Application Hled August 26, 1904- Serial No. 222,277.

To a/ZZ whom it may concern,.-

Be it known that I, LEE EAGER, a citizen of the United States, residingat Arapaho, in the county of Custer, in the Territory of Oklahoma,haveinvented a new and useful Improvement in Boiler-Tube Fastenings, ofwhich the following is a specification.

My invention relates to improvements in steam-boiler Hues and Hue-platesor boilerheads.

The objects of my improvements are, Hrst, to more securely and morepermanently fasten the ends of the Hues to the Hue-plates; second, toprevent the leakage of both steam and water; third, to prevent theburning of the Hues. I attain these objects by the mechanism illustratedin the accompanying drawings, in which- Figure I is a section of end ofHue, Hueplate, and the Hue nut or fastener. Fig. II is an end view ofHue nut or fastener, showing it as it would appear from inside theboiler. Fig. III is a section in quarter of Hue-nut, showing thesupports in the water-chamber o o of the nut.

A A represent the Hue, which has threads cut on the outside.

B B representHue-nut with threads cut on l both inside and outside.

end. The inner threads of the Hue-nut screw onto the Hue at the sametime that the outer threads screw into the Hue-plate, thus making aperfect rigid joint. The space which separates the inner parts of thenut forms a waterchamber c c', that communicates with the water in theboiler, which admits the water well back into the nut, thus preventingit from heating or burning. Within-this water-chamber are ribs orsupports uniting the two parts of the nut, as shown in Figs. II and III.

I am aware that prior to my invention boilertube fastenings have beenmade containing water-space to facilitate the circulation of the waterabout the Hue-joint. I therefore do not claim such a combinationbroadly; but

What I do claim as my invention, and desire to secure by Letters Patent,is

A device of the character described, comprising a tubular extension orguard integral with the Hue-sheet and a sleeve or nut havingscrew-threaded connection with said extension or guard upon the interiorof the latter and having corresponding connection with the Hue upon itsexterior.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

LEE EAGER.

Witnesses:

J. A. OARLBERG, C. W. BREWER.

